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Cheap flights from Ireland to Washington, D.C. from $378

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Washington, D.C. departing on 7/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ireland to Washington, D.C.

Recent round-trip flight deals from Ireland to Washington, D.C.

Enter your travel dates to find the best prices.
Delta Logo
1:25 pm - 10:59 pm
DUB
-
DCA
14h 34m
2 stops
Delta Logo
12:32 pm - 8:45 am
DCA
-
DUB
15h 13m
2 stops
$607Delta
Tue, Sep 8 - Tue, Sep 29
Delta Logo
1:25 pm - 10:59 pm
DUB
-
DCA
14h 34m
2 stops
Delta Logo
11:10 am - 9:15 am
DCA
-
DUB
17h 05m
1 stop
$608Delta
Thu, Sep 3 - Wed, Sep 9
Delta Logo
9:40 am - 10:53 pm
DUB
-
DCA
18h 13m
2 stops
Delta Logo
10:00 am - 7:45 am
DCA
-
DUB
16h 45m
2 stops
$610Delta
Sat, Dec 19 - Sat, Jan 2
Delta Logo
11:55 am - 9:32 am
DUB
-
DCA
25h 37m
1 stop
Delta Logo
7:00 am - 9:45 am
DCA
-
DUB
21h 45m
1 stop
$611Delta
Wed, Oct 28 - Sun, Nov 1
JetBlue Logo
10:40 am - 7:09 pm
DUB
-
DCA
13h 29m
1 stop
JetBlue Logo
8:55 am - 8:20 am
DCA
-
DUB
18h 25m
1 stop
$613JetBlue
Fri, Jul 10 - Thu, Sep 17
United Airlines Logo
9:50 am - 3:38 pm
DUB
-
DCA
10h 48m
1 stop
United Airlines Logo
8:20 pm - 11:10 am
DCA
-
DUB
9h 50m
1 stop
$614United Airlines
Tue, Aug 25 - Tue, Sep 22
United Airlines Logo
9:50 am - 3:38 pm
DUB
-
DCA
10h 48m
1 stop
United Airlines Logo
8:20 pm - 11:10 am
DCA
-
DUB
9h 50m
1 stop
$616United Airlines
Tue, Aug 25 - Tue, Sep 22
British Airways Logo
11:55 am - 11:56 pm
ORK
-
DCA
17h 01m
2 stops
British Airways Logo
6:30 pm - 3:25 pm
DCA
-
ORK
15h 55m
2 stops
$747British Airways
Fri, Nov 6 - Mon, Nov 9
British Airways Logo
11:55 am - 11:56 pm
ORK
-
DCA
17h 01m
2 stops
British Airways Logo
1:44 pm - 11:10 am
DCA
-
ORK
16h 26m
2 stops
$748British Airways
Fri, Nov 6 - Mon, Nov 9
Air Canada Logo
7:30 am - 9:50 pm
SNN
-
DCA
19h 20m
2 stops
Air Canada Logo
9:40 am - 11:20 am
DCA
-
SNN
20h 40m
2 stops
$772Air Canada
Fri, Sep 18 - Fri, Sep 25

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JetBlue flights from Ireland to Washington, D.C. Reagan-National Airport

Our best JetBlue deals on Ireland to Washington, D.C. Reagan-National Airport flight tickets
JetBlue
Jul 10
DUB10:40 amDublin
13h 29m
1 stop
DCA7:09 pmWashington, D.C. Reagan-National
Sep 17
DCA8:55 amWashington, D.C. Reagan-National
18h 25m
1 stop
DUB8:20 amDublin
$613
JetBlue
Jul 16
DUB10:40 amDublin
16h 10m
1 stop
DCA9:50 pmWashington, D.C. Reagan-National
Jul 31
DCA2:25 pmWashington, D.C. Reagan-National
12h 55m
1 stop
DUB8:20 amDublin
$626
JetBlue
Sep 6
DUB10:40 amDublin
14h 16m
1 stop
DCA7:56 pmWashington, D.C. Reagan-National
Sep 29
DCA5:15 pmWashington, D.C. Reagan-National
10h 05m
1 stop
DUB8:20 amDublin
$650

Iberia flights from Ireland to Washington, D.C. Reagan-National Airport

Our best Iberia deals on Ireland to Washington, D.C. Reagan-National Airport flight tickets
Iberia
Jul 23
DUB9:30 amDublin
16h 29m
1 stop
DCA8:59 pmWashington, D.C. Reagan-National
Jul 30
DCA1:59 pmWashington, D.C. Reagan-National
16h 51m
1 stop
DUB11:50 amDublin
$694
Iberia
Aug 5
DUB9:30 amDublin
16h 29m
1 stop
DCA8:59 pmWashington, D.C. Reagan-National
Aug 12
DCA1:46 pmWashington, D.C. Reagan-National
17h 04m
1 stop
DUB11:50 amDublin
$720
Iberia
Jul 7
DUB9:30 amDublin
16h 29m
1 stop
DCA8:59 pmWashington, D.C. Reagan-National
Jul 14
DCA1:59 pmWashington, D.C. Reagan-National
16h 51m
1 stop
DUB11:50 amDublin
$758

momondo Fare Finder

 
Customize your flight search to find flights from Ireland to Washington, D.C. Reagan-National Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 24, 2026.
Use the filters below to find and compare flights from Ireland to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 9/8

1:25 pm-10:59 pm

2 stops14h 34m

Washington, D.C. Reagan-National

Tue 9/29

12:32 pm-8:45 am

2 stops15h 13m

$607

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Thu 9/3

1:25 pm-10:59 pm

2 stops14h 34m

Washington, D.C. Reagan-National

Wed 9/9

11:10 am-9:15 am

1 stop17h 05m

$608

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Sat 12/19

9:40 am-10:53 pm

2 stops18h 13m

Washington, D.C. Reagan-National

Sat 1/2

10:00 am-7:45 am

2 stops16h 45m

$610

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Wed 10/28

11:55 am-9:32 am

1 stop25h 37m

Washington, D.C. Reagan-National

Sun 11/1

7:00 am-9:45 am

1 stop21h 45m

$611

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Fri 7/10

10:40 am-7:09 pm

1 stop13h 29m

Washington, D.C. Reagan-National

Thu 9/17

8:55 am-8:20 am

1 stop18h 25m

$613
Quickest round-trip

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 8/25

9:50 am-3:38 pm

1 stop10h 48m

Washington, D.C. Reagan-National

Tue 9/22

8:20 pm-11:10 am

1 stop9h 50m

$614

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 8/25

9:50 am-3:38 pm

1 stop10h 48m

Washington, D.C. Reagan-National

Tue 9/22

8:20 pm-11:10 am

1 stop9h 50m

$616

CorkWashington, D.C.

ORK - DCA

ORKDCA

Cork

Fri 11/6

11:55 am-11:56 pm

2 stops17h 01m

Washington, D.C. Reagan-National

Mon 11/9

6:30 pm-3:25 pm

2 stops15h 55m

$747

CorkWashington, D.C.

ORK - DCA

ORKDCA

Cork

Fri 11/6

11:55 am-11:56 pm

2 stops17h 01m

Washington, D.C. Reagan-National

Mon 11/9

1:44 pm-11:10 am

2 stops16h 26m

$748

ShannonWashington, D.C.

SNN - DCA

SNNDCA

Shannon

Fri 9/18

7:30 am-9:50 pm

2 stops19h 20m

Washington, D.C. Reagan-National

Fri 9/25

9:40 am-11:20 am

2 stops20h 40m

$772

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Ireland to Washington, D.C. Reagan-National Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ireland to Washington, D.C. Reagan-National?

JetBlue, Icelandair, and Aer Lingus are the most popular carriers operating from Ireland to Washington, D.C. Reagan-National

Cheap Ireland to Washington, D.C. Reagan-National Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Washington, D.C. Reagan-National Airport

Fastest flight time

10h 34m

Direct flights

None
The fastest flight from Ireland to Washington, D.C. Reagan-National Airport takes 10h 34m
There are no direct flights from Ireland to Washington, D.C. Reagan-National Airport. There are no popular flight routes from Ireland to Washington, D.C. Reagan-National Airport.
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Frequently asked questions about flying from Ireland to Washington, D.C. Reagan-National Airport

  • When did momondo last update prices for flights from Ireland to Washington, D.C. Reagan-National Airport?

    Prices for flights from Ireland to Washington, D.C. Reagan-National Airport are updated daily.

  • How old do you have to be to fly from Ireland to Washington, D.C. Reagan-National Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Reagan-National Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Reagan-National Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Arlington
Gettysburg
Waldorf
Laurel
Woodbridge
Fredericksburg
Gaithersburg
Colonial Beach
Linthicum Heights
Rockville
Silver Spring
Towson
Manassas
Tysons
Springfield
Fairfax
Bethesda
Glen Burnie

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Washington, D.C.?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Ireland.

Can I find flights from Ireland to Washington, D.C. with flexible booking policies on momondo?

Flights from Ireland to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ireland to Washington, D.C.?

momondo helps you find the best flight between Ireland and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ireland to Washington, D.C. right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Ireland and alert you when they change.

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